Replaceable Terminal Connection Structure for Power Tool Relays
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Solution Overview
Problem
Existing connection structures for relay terminals in electric power tools require multiple designs and stock different intermediate products for various client needs, making them inefficient and costly to manage.
Innovation Solution
A terminal connection structure featuring replaceable tab terminals and a base housing that allows for different connection methods without altering the base design, enabling easy adaptation to client needs and reducing the need for multiple intermediate products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different connection modes are implemented to meet different client needs, then adaptability is improved, but device complexity increases and requires multiple intermediate products to be stocked
Solution Approach 1:
The starter is divided into two independent segments: a standardized base and interchangeable terminal units. The base contains common components (housing, motor, winding) while terminal units (socket terminal, connection terminal, terminal box) can be swapped to achieve different connection modes (Y-start, Δ-start, direct online) without modifying the base design.
Solution Approach 2:
The standardized base is designed with universal mounting structures and terminal interfaces that can accommodate multiple types of terminal units. This allows a single base design to serve multiple connection configurations, eliminating the need for separate starter designs for different client requirements.
2Adaptability or versatility
If multiple intermediate products are stocked for different clients, then adaptability is improved, but inventory management complexity increases
Solution Approach 1:
By segmenting the starter into a common base and interchangeable terminal units, the inventory system is simplified. Instead of stocking complete assembled starters for each connection type, only terminal units need to be inventoried and can be quickly swapped to meet different client requirements.
3Ease of operation
If terminal portions extend across the housing surface, then ease of operation is improved, but occupied space increases
Solution Approach 1:
The terminal portions are arranged to extend in multiple dimensions relative to the housing surface. Some terminals extend laterally while others extend vertically, allowing external connections to be made from different directions and reducing the footprint on any single surface plane.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates convenient and efficient connection methods, reduces inventory needs, and enhances safety and accuracy in terminal connections while minimizing occupied space.
Implementation Method 1
a pair of springs may be disposed between the terminal portions of the pair of tab terminals, and the external terminal may be crimped to the terminal portions by a spring force of the springs
Data Source
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AI summary
A terminal connection structure adaptable to various connection methods is provided. The terminal connection structure includes: a pair of tab terminals 62 and 63 that are provided on a base 20 housed in a housing; and a pair of terminal portions 62c and 63c that are provided in the tab terminals 62 and 63 in parallel and that are each exposed from the housing so as to be capable of being connected to an external terminal. A terminal unit 60 disposed so as to sandwich a terminal plate 61 with the pair of tab terminals 62 and 63 is capable of replacing the base 20.